<!DOCTYPE html>
<html lang="en" xmlns:v-bind="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="UTF-8">
    <title>Title</title>

</head>
<body>

<div id="app">
<!--    {{message}}-->
    <span v-bind:title="message">
        鼠标悬停几秒钟查看提示信息！
    </span>
</div>

<!--导入vue.js编写js代码-->
<script src="https://cdn.jsdelivr.net/npm/vue"></script>
<script>
    let vm = new Vue({
        el:"#app",
        data:{
            message:"hello,Vue!"
        }
    });
</script>

</body>
</html>